First open right side cover and check the main board for short circuit. If we find any short circuit, we need the BGA Machine for change the IC controller. But if Powerboard doesn't have short circuit better check fuse and component on USB channel that which one is open also OHM test USB port on a Mainboard four pin are connect. If open line on USB port same this printer we going to exchange USB port .
This blog teaches everyone about Hardware Equipment Repair. Electronics repair training from the basics level to repair of devices that need mechanical training like printers and video projectors. I teach through posts and videos about computer repair. The important thing in Engineering is finding a solution to a question. I also to teach LCD screen repair.
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Tuesday, November 18, 2014
Thursday, November 6, 2014
How to Fix samsung monitor when screen and power led both blinking ?
After the watch full this video, you be able to repair all monitor that any model and any brand, I use capacitor 1000uF 25V. I have to say if any capacitor is spoil is better we exchange with 25V because the voltage for a capacitor is equal 2X energy that section of a circuit. If you don't have the inverter transformer. Better you test after an install new capacitor. If problem solve, monitor is ready if monitor still has the problem , please keep in touch and subscribe my channel for next video. I wish the best for all of you.
you looking for a special solution and can not find it, please publish comment on here your question I publish solving the problem on next post, better you also follow the blog.
Other monitors Link:
Dell ST2420LB, LG W1942T, AcerAL1717, Chimei CM938D, LG Flatron W2043,
Samsung 740N , Samsung Syncmaster SA10, LG FLATRON w2261vp, Samsung SyncMaster 2243,
Samsung blinking, Samsung 2033sw, LG FLATRON W2043, Acer AL1717, LCD,
Dell ST2420LB, LG W1942T, AcerAL1717, Chimei CM938D, LG Flatron W2043,
Samsung 740N , Samsung Syncmaster SA10, LG FLATRON w2261vp, Samsung SyncMaster 2243,
Samsung blinking, Samsung 2033sw, LG FLATRON W2043, Acer AL1717, LCD,
Tuesday, October 28, 2014
How to repair projector that have color problem ?
LCD Prism & Lens |
LCD Prism & Lens |
LCD Prism & Lens |
LCD Prism & Lens |
LCD Prism 1 |
LCD Prism 2 |
LCD Prism Green |
LCD Prism Blue |
whole set LCD Prism |
Lens Top |
Lens Bottom |
Lens side |
Green Polarizer |
Red Polarizer |
Blue Polarizer |
Power Board |
Main Board |
Main Board |
Projector inside |
Lens & LCD Prism |
How to repair a projector that have the color problem (one of the three primary colors: red, green, blue will not display)?
First, the projector's frame by a screw at the bottom of the frame and the frame is closed, we open up the projector separated. Now you can see the three cables attached to the LCD PRISM Connected to Mainboard. Cable middle of the green, blue is cable on the right and left cables are red.
Compared to what you see in the image projector image of one of the three primary colors are saturated. To test the projector Power button off. Disconnect the power cable from it. One of the Cables to fit color LCD PRISM viewed cautiously remove the Mainboard. Re-connect the power cord to the projector and turn it on. You'll see that the picture has not changed. Now off to redo the process And remove the power cord from the projector. Disconnect all cables connected to the Mainboard from the main board and remove the screws. Carefully remove Mainboard from the projector. Then twist LCD PRISM open. If you like the pics below the projector lens attached and then remove it completely figure out. PRISM LCD part number printed on the cable. LCD PRISM from the same collection and buy it off and replace. And pack the projector and use it.
Sunday, October 26, 2014
How to repair double image on hp color laserjet 2600n
Self-test page after repair |
Supplier service page after repair |
Demo page after repair |
Diagnostic Page color mismatch |
double image on color print |
print color mismatch |
double image on a print |
Cyan Cartridge not match |
Magenta Cartridge not match |
hp color laserjet 2600n |
hp color laserjet 2600n menu |
hp color laserjet 2600n |
we need to reset printer by restore default on menu->service->Restore Defaults. After that we doing calibrate cartridge : menu-> System Setup -> Print Quality-> Calibrate Colour -> Calibrate Now . And cleaning by Menu ->Service -> Cleaning Mode .Then Printer will be Okay.
Wednesday, October 22, 2014
How to fix error P07 (5B00) on canon pixma mp258
Service tool (Resetter) for Canon MP258 |
Connect printer to a computer and wait for installation driver then search for ServiceTool_v1074 download. If you can not find it just let me know, i send it to you. After download service Tool (Resetter) follow the instruction:
1- printer switch to off.
2- press the STOP/RESET and hold, then press the POWER and hold.
3- when holding POWER button, release STOP/RESET then press it two times.
4- release two buttons.
5- wait for a while until printer showing 0.
6- open the Service Tool and put two papers on tray.
7- click on the Main in clear ink counter.
8- click on the EEPROM Clear in operation.
9- click on EEPROM in print.
10- turn off the printer by POWER button.
11- printer is ready use.
Tuesday, October 21, 2014
How to repair hp color laserjet CP2025 when print has mismatch color problem
Fake Cartridges |
Hp Color Laserjet CP2025 |
Hp Color Laserjet CP2025 |
Diagnostic Page 2 after Service |
Demo Page After Service |
Diagnostic Page 2 Before Service |
Demo Page Before Service |
Original Hp Cartridges |
Diagnostic Page 1 Before Service |
Diagnostic Page 1 after Service |
If inside the printer have one or more fake toner cartridge we have to exchange it with new original hp toner cartridges. After that, we need to reset printer to restore the default on menu->service->Restore Defaults. After that we doing calibrate cartridge menu->System Setup -> Print Quality-> Calibrate Color -> Calibrate Now . And cleaning by Menu ->Service -> Cleaning Mode. Then Printer will be Okay.
Sunday, October 19, 2014
How to repair Monitor Lcd Samsung SyncMaster 2243 when power LED is blinking and no display
No Display & Power LED Blinking |
Monitor after opening back cover |
Key Cable |
Inverter Cables |
Right side is Power Board, and Left is Mainboard with LCD cable |
Two Spoiled Capacitors on +5v Circuit |
Power Board with Spoiled Capacitors |
inverter trans and two spoiled capacitors |
5v spoiled capacitor |
Take out the component |
Take out the component |
capacitors +5 v |
inverter place |
new Inverter |
spoiled capacitors |
ruined inverter |
1000uF 25v |
new inverter bottom |
installation new component |
inverter new component |
5v new capacitors |
boards chassis |
Monitor is Ready to use |
This different problem power LED blinking and no display. We tray to open screen frame first take out the stand then open the back cover. Second is open all wire (LCD cable, Inverter cables and keyboard cable. Third take out the power board. Now you can see the four capacitors spoiled and around the inverter trans changed color. That means we have the problem of inverter trans need to exchange and two capacitors near to transformer are spoiled because trans gone (this is a solution for no display problem here). And two capacitors near to output cable are spoiled this means 5 V has problem then power led is blinking, we need to exchange capacitor. Better we change all capacitors by 1000uF 25V. Now we will close the back cover and stand. Monitor is okay.